Refers to ingredients (such as ceramides, niacinamide, fatty acids, and cholesterol) that reinforce the stratum corneum lipid matrix to reduce transepidermal water loss and improve skin resilience. They support the skin's natural protective barrier and help maintain hydration.
| Reported effect | How often | Notes |
|---|---|---|
Mild transient stinging or tingling on application | Uncommon | Usually brief and more likely on compromised or sensitized skin |
Transient erythema or redness | Uncommon | Typically resolves shortly after application |
Contact irritation | Rare | Can occur with certain concentrations or in very sensitive individuals |
Allergic contact dermatitis | Very rare | Possible reaction to specific actives or formulation excipients |
Frequencies reflect typical cosmetic use reported in the literature, not a guarantee for your skin.